Home / 3,528.64-5,292.78-931.48

Finding the Fourth Proportional to 3,528.64, 5,292.78 and 931.48

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Solution

The fourth proportional to 3,528.64, 5,292.78 and 931.48 is: 1,397.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.64 : 5,292.78 = 931.48 : x
  2. Step 2: Convert to fraction form
    3,528.64/5,292.78 = 931.48/x
  3. Step 3: Cross multiply
    3,528.64x = 5,292.78 × 931.48
  4. Step 4: Simplify right side
    3,528.64x = 4,930,118.71
  5. Step 5: Solve for x
    x = 4,930,118.71/3,528.64
  6. Step 6: Final answer
    x = 1,397.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.